Posts Tagged ‘surge protector’

Surge protector in switchboards > 50kA ?

June 14th, 2010 | 22 Comments | Posted in Electrical distribution
Tags: , , , ,
electrical_risk

I would like to share a problem I face when I have to install a surge protection device type 1 in high power electrical switchboard. I already asked this question on another blog, and I’m trying to get more feedbacks from electrical engineers.

The situation is very “unconfortable” for me as a quality provider, because if a short-circuit of high value happens, though luckily probability is low, it would mean very serious safety risks …

(more…)

Surge protector in switchboards > 50kA ?

February 21st, 2010 | 14 Comments | Posted in Panel Building
Tags: , , , ,
Lightning striking the Eiffel Tower (1902)

Lightning striking the Eiffel Tower (1902)

I would like to share a problem I face when I have to install a surge protection device type 1 in high power electrical switchboard.

The situation is very “unconfortable” for me as a quality provider, because if a short-circuit of high value happens, though luckily probability is low, it would mean very serious safety risks …

electrical_risk

(more…)

LV surge protection installation

July 20th, 2009 | 15 Comments | Posted in Electrical distribution
Tags: , , , ,

It’s Good to have in mind practical aspects: case of a low voltage  switchboard To achieve the effective installation of the , the surge arrester’s connections to the grid should be as short as possible. Any cable crossed by a impulse current has a significant voltage to be added to the Device (SPD) residual voltage.

nice picture from http://www.lafoudre.com/

nice picture from http://www.lafoudre.com/

(more…)

Effective surge protection installation into an electrical switchboard?

June 19th, 2009 | 1 Comment | Posted in Panel Building
Tags: , , , , ,

Many Electrical Contractors and Panel builders ask this question.

To achieve the effective installation of the surge protection, the surge arrester’s connections to the grid should be as short as possible. Any cable crossed by a lightning impulse current has a significant voltage to be added to the Surge Protection Device (SPD) residual voltage.
(more…)

LV: Coordination between 2 Surge protection devices (SPD)

June 18th, 2009 | 18 Comments | Posted in Electrical distribution
Tags: , , , ,

Lightning & Surge protection: Advice to ensure a  guaranteed lightning protection  for a low voltage electrical installation

city lightning

lightning

(more…)

Electrical engineering Community is proudly powered by WordPress
Entries (RSS) and Comments (RSS) and license Creative Commons License